The City of Portland has started a Sanitary Sewer Infiltration & Inflow (I&I) Study as part of a sewer system condition assessment. I&I studies are used to locate possible deficiencies in the wastewater collection system that may allow storm or ground water to enter the system. The results will help prioritize and plan future wastewater maintenance and rehabilitation projects, and is being done as part of a preventative maintenance program so that any issues can be proactively addressed.
Pipeline Analysis, an engineering firm specializing in wastewater collection systems, will conduct the field tests and monitoring. The company is headquartered in the Dallas/Fort Worth area.